<!--
 * @Author: JPeng 872639397@qq.com
 * @Date: 2022-05-05 18:29:54
 * @LastEditors: JPeng 872639397@qq.com
 * @LastEditTime: 2022-05-05 18:35:23
 * @FilePath: \算法测试\day0906\5.5.html
 * @Description: 这是默认设置,请设置`customMade`, 打开koroFileHeader查看配置 进行设置: https://github.com/OBKoro1/koro1FileHeader/wiki/%E9%85%8D%E7%BD%AE
-->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box{
            background-color: red;
        }
        .f{
            float: left;
            width: 100px;
            height: 100px;
            background-color: green;
        }
        .a{
            float: left;
            width: 100px;
            height: 100px;
            background-color: yellow;
        }
        .box::after{
            content: '';
            display: block;
            clear: both;
        }
    </style>
</head>
<body>
    <div class="box">
        <div class="f">

        </div>
        <div class="a">

        </div>
        <div class="c"></div>
        <a href="">12312312312</a>
    </div>
    <script>
        
    </script>
</body>
</html>